Acronym for Special SomePony.
An online RP relationship, specific to the chatroom website, Cloudsdale.org
Having an SSP is supposed to be flirty and fun, however people take them very seriously, and treat them like real relationships.

Summer Science Program. Intensive summer camp on astronomy hosted in Socorro, NM and Ojai,CA where students get to work on their asteroid research projects. Has become insanely more competitive in 2005.

That dude submitted yet another asteroid research project to Intel. He must have gone to SSP.